Re: William the Conqueror & The Bishop !
I have found information on the Lacys being from Flanders prior to Lasse, so they could have been in Matilda's train, but unfortunately I blew my computer up with the details on (not intentionally!).
Interestingly, although the two brothers were Companions to the Conquerer, they aren't on the Battle Rolls, which implies they didn't fight at Hastings.
Were they 'holding the fort' back in Normandy, or just sensible enough to stay alive by throwing a sickie?!